Loft Bed With Desk For Adults If you're looking for a loft bed designed for adults with desk, there are plenty of options. These beds are stronger and larger than those made for children and can accommodate full-sized mattresses. A high-end wood bed and study area come together in one neat package. The loft bed is constructed of spruce or poplar and accommodates twin or full-sized mattresses without box springs. 1. Lyndon Twin Size Loft Bed with Desk and Storage Loft Bed With Desk Desk A Allewie Metal Twin Loft Bed Frame: Sturdy Design Guardrail loft bed with a desk is an ideal solution for small bedrooms, especially when you have a teenager or bunkbedsstore child who needs a space to work and study. This Greyleigh model has a thick wooden design that is sturdy and visually appealing, with rounded edges and mortise and tenon construction for increased strength and durability. The bed is available in twin or full size and includes the desk built-in and an access ladder to the top of the.